Start studying Week #9 Quiz - CIST1220-Structured Query Language-SQL. While the commands shown here should work on most relational databases, be aware that every SQL database uses its own unique implementation of the SQL standard. Mark for Review (1) Points SELECT description FROM d_types WHERE code If the statement returns a row, the value returned is the same as if you invoked the LAST_INSERT_ID() function. In this article, I am going to discuss the Comparison Operators in SQL Server with examples. It is similar to an OR condition. SQL Equal (=) Operator. Note: The return value of a comparison is either true (1) or false (0). Comparison operators can be used on all expressions except expressions of the text, ntext, or image data types. : OR: The OR operator in SQL is used to compare data with more than one condition. Operator Description += Add equals-= Subtract equals *= Multiply equals /= Once we run above SQL script our table “EmployeeDetails” will create and result will be like as shown below Now we will learn each comparison operator in SQL with proper examples. SELECT * FROM tbl_name WHERE auto_col IS NULL . Comparison Operators. If it’s equal, then the condition will be true and it will return matched records. Following are the Operators in SQL, let’ discuss the one by one: a. Arithmetic operators + (Addition) – This SQL operator adds values on either side of the operator – (Subtraction) – This SQL operator subtracts right-hand operand from left-hand operand. The following are the list of SQL Comparison operators with an example of each. Change the comparison operator to a single-row operator. Comparison operators test whether two expressions are the same. ... AND is the same as using the following expression: WHERE salary >= 9000 AND salary <=11000; In fact, there is no performance benefit in using one expression over the other. Which of the following statements contains a comparison operator that is used to restrict rows based on a list of values returned from an inner query? Learn vocabulary, terms, and more with flashcards, games, and other study tools. Operator Description Example = Equal to: Try it > Greater than: Try it < Less than: Try it >= Greater than or equal to: Try it <= Less than or equal to: Try it <> Not equal to: Try it: SQL Compound Operators. Comparison operators are used to compare two values. SQL Equal to Operator (= Operator) The SQL Equals Operator is the most used comparison operator. 4. In the following example, we use the greater than operator (>) to find out if 5 is greater than 3: For example: If you want to find the names of students who are studying either Maths or Science, the query would be like, SELECT first_name, last_name, subject SQL IN Operator: The IN operator is used when you want to compare a column with more than one value. Operator Description; AND: The AND operator in SQL is used to compare data with more than one condition. In SQL, the equal operator is useful to check whether the given two expressions equal or not. SQL Comparison Operators Examples. Please read our previous article where we discussed the Arithmetic Operators with examples. Comparison Operators in SQL: This course shows how to apply the proper comparison operator in SQL to return a desired result. LIKE, BETWEEN and = operators are used for comparison in SQL. If sql_auto_is_null variable is set to 1, then after a statement that successfully inserts an automatically generated AUTO_INCREMENT value, you can find that value by issuing a statement of the following form: . 3. If all the conditions return TRUE then only it will display records. SQL Operators. It will display the records whose column value is … If either of the condition is TRUE it will return data. By following this guide, you learned how to use SQL’s comparison and IS NULL operators in WHERE clauses to limit the rows that an operation will affect. Comparison Operators in SQL Server. SQL Comparison Operators. Remove the quotes surrounding the date value in the OR clause.
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